The other day my droid continued to discharge the battery even though it was connected to the car adapter. Finally the low battery light came on and it would just reboot and shut down. I removed the battery and put it back in with no change. I put in a spare battery and the phone worked fine. I then took the discharged battery and instead was able to recharge it with a stand alone charger....put it back into the droid and now it CAN be recharged by the car charger....strange behavior here...any ideas what happened?